Gas-cleaner.



J. McPHAIL.

GAS CLEANER.

APPUCATION FILED JUNE 2. 19m.

Patented Dec. 21, 1915.

3 SHEETS-SHEET 2.

I. MQPHAIL.

GAS CLEANER.

APPLICATION FILED JUNE 2. I913,

Patented Dec. 21, 1915.

3 SHEETS--SHEET 3.

YWPIQM w 2 I I 4! if HU I I 5 Illlulllhmln ,JrmIIlIllilt m I 5 9 v 5 tus. I provide my JAMES MoPHAIL, OF LOWEL'LVILLE, OHIO ASSIGNOB, 0F ONE-HALF T0 WILLIAM C.

HOLZWOELTH, OF LOVJLELLVILLE, OHIO.

GAS-CLEANER.

Sp ccification of Letters Patent.

latented Dec. 21, 1915.

Application filed June 2, 1915. Serial No. 31,669.

To all whom it may concern Be it known that 1, James McPr-rsni, a citizen of the United States, residing at Lowellville, in the county of Mahoning and State of Ohio, have invented new and useful Improvements in Gas-Cleaners, of which the following is a specification.

My invention relates to apparatus for cleaning gases. I

The ob ect of this invention is to provide an apparatus by which gases charged with impurities may be brought into intimate contact with numerous streams or sheets of water, preferably flowing downwardly on the exterior surfaces of vertical water tubes, whereby the solid ingredients, such as ore dust, coke dust, soot, and the like, and the soluble gaseous ingredients may be arrested by the water and deposited in a suitable place, whence the said ingredients may be discharged from time to time.

It is another object to provide suitable means for regulating and maintaining the flow of water along the said tubes and for preventing any interference with the said means by unauthorized persons.

Another object is to provide adequate means for preventing the intense heat of the gases, which may be, for example, such gases as-are discharged through the downcomer of a blast furnace, from warping and twisting any of the parts of my said apparaapparatus against damage by severe explosions due to slips in the blast furnace.

Other objects will appear hereinafter.

Referring to the accompanying drawings, Figure 1 is a side elevation of a gas cleaner embodying the principles of my invention, portions being broken away. Fig. 2- is a plan view of Fig. 1.- Fig. 3 is an end elevation of the same. Fig. 4 is a sectional detail showing the connection of a water tube with the top of the casing.

Fig. 5 is a. detail showing the manner of connecting the distributertubes to the casing. Fig. (3 is a do tail showing the means for supporting the said tubes.

On the drawings, 1 show a main metallic casing having the vertical sides 1 and 2, the ends'3 and 4; the horizontal top 5, and the bottom 6. The bottom (5 is formed of three inclined portions, two of these portions, marked 7, being downward converging extensions or continuations of the sides 1 and 2, and the remaining bottom portion extending downwardly and forwardly from the rear end 1 and having its edges forming tight joints (indicated by the dotted lines 8, Fig. 2) with the bottom edges of the said portions 7, which make tight joints with the downwardly tapering front 3.

The front of the casing upward from about the lines where the sides meet the bottom portions 7 comprises a forwardly tapering gas-distributing casing 9 having its rear edges made gas-tight with the sides 1 and 2, the front 3 and the top 5. The forward end of the casing 9 has the inlet opening 10 which. may be connected to the outlet end of a downcomer pipe of a blast furnace I or to any other desired source of gas which it is desired to clean. The explosion door 11 normally closes an opening communicating with the interior of the casing 9. I have shown this door resting on and closing the top of the box 12 secured to the top of the casing 9, the bottom of the box opening into the said casing. The door 11 is hinged at its rear edge and has its front edge provided with the chain 13 secured to the casing E), the chain being of such length as to prevent the center of gravity of the door 11 from passing rearwardly of the hinges or pivots 14 by which the door is secured to the box 12. The basing is braced by suitable L-bars 15 secured thereto. To the top of the casing 9 l hinge the vertical distributor plates, or guides, 16, one at each side of the longitudinal center thereof so as to divide the interior of the easing into three passages. The plates 6 diverge rearwardly and swing freely on their hinges. The gases admitted to the main casing are discharged through the rearwardly-tapering casing 1 secured gas-tight to the sides 1 and 2, the top 5, and the bottom 6.

The structure so far described is supported on the columns 18, and the bottom is reinforced by the L-bars 19 secured thereto.

20 is a vertical conduit connected to the lowest part of the bottom 6 and the front 3. The lower and of the conduit is closed by the upwardly-seating valve 21 carried by the lever 2'2, which has the adjustable weight 23 for-holding the valve against its seat at the lower end of the conduit 20 with a predetermined pressure.

the trap.

f2 t is a, U-shaped trap secured in the front 3 and having its free end comprising the T 25. The upper end of the T is provided with the plug 26, which prevents the entrance of dirt into the trap, but which may be removed to facilitate the cleaning out of The horizontal central, opening 27 of the T constitutes the outlet of the trap.

28 is a pipe connected to a supply of waterunder ressure. In this pipe is the valve 29 controlled by a key of special shape, for

example, by a key shaped to fit the special slot 30, in which the key must be inserted before the valve can be operated. The details of such a special valve are old and need not be further described.

The pipe 28 communicates with the two horizontal pipes 3l'and 32 which lead the Water right and left. These pipes are preferably in the rear of the end 4 of the main casing. The pipe 31 communicates with the horizontal distributing pipe 33 and the pipe 32 with the horizontal distributing pipe 34, the pipes 33' and 34 extending forwardly on opposite sides of the main anaining pipes 35 are connected to the pipe 34 by the pipes 37. The pipes 36v and 37 contain the special valves 38 which, like the valve 29 require a special key for control- 'li11g them. I have on Fig, 1 .shown the valves PIOVlClGfl Withthe specially-shaped eye-bars kcy' slots 39- Theof those plpes Whmh are not connected t'o the pipes 36 and 3! 451 are provided with the'screwcaps 40 which screw up against the outer faces of the sides Land 2, nuts 41 being screwed up on, the

pipes against the inner faces of the said sides. Theother ends' of the pipes 35 are connected to the sides 1 and 2 by the pipes 36 and'37 by the reducing sections 42 and the 'nuts43 in a similar manner, the section 42 engaging the outer faces of the said sides and the nuts 43 the inner faces thereof. The pipes 35 are each composed of the nipples 44 and Ts 45 arranged alternately, thecent'ral openings of the Ts all being up.

The top 5 of the main casing is composed of a series of channel bars 456 with their channels opening upwardly andtheir ends closed. There is one channel bar 46 directly over and parallel with each pipe 35.

The adjacent channel bars are riveted to-- shaped spacers are placed on H the spaces between the pipesin the next row.

the" pipes 35rest to prevent tl'reir ho water this; 50 for the purpose ot-asccr The rivets and packing are omitted from the other views owing to the small scale used thereouf The channelsare designed to contain water, notches 529 being cut through the flanges of adjacent channels in order that the water may have its water level equalized autonmtically. Viater be supplied to the channels by any means to make up for the waste by erapm .1- tion. a 7:;

Vertical pipes 50 are screwed into the urn tral openings of the T's 4-5, the upper of the pipes being threaded externally i extending up into openings 51 in the hottoms of the channels M3. These openi as In are closed by screw plugs having cac recess on its under side to rereivcthe u ii ier end of a pipe 50. r aix The recess is larger than the Pipeand a. want of the the pipes so that the outer meant e and spacers on each pipe fit between the the wall of the recess in the plug 52. n which the end of the pipe stands, the remaining member 0t each spacer extending down-- wardly along the inner wall of the pipe. ll;-

,will be noted from Fig. 2 thatthc pipes 50 are staggered from front to rear, that 1s,-the

pipes ingone transverserowstand oppmsite '95 5t is a metal support extendinglength wise of the apparatus and PX)\ 'lL,%Ll with the notches in which the central porti'ne oil ontel movemenu- Vertical hangers 51 ha lower ends connected to the support 5% and their upper ends extending through the top he hangers are suspended from the top 5 by the nuts 57 screwed on the hangers and resting on the top 5. i H

The sides 1 and 2 are tied. together by the provide a number of plugs 59 which n removed permit an; n'ispectioz' of tl ing: who not water is wing down the said t Jies. These plugs are located posite the spaces between the transverse rows oi tubes. I i a a i The inlet opening; 10 is connected, for enample, to -the downcoiner of achlast, furnace. The outlet casing l7 maybe connected, for

example, to l lot hla'st stoves, or other appzn ratus for consuming the cleaned gases. Na-- i vater flowing down the water tubes 50, whereby the ore dust, coke dust, soot, and other solid matter, and all soluble matte in the is wet and absorbed by the water which falls upon the bottom 3 and collects thereon toga predetermined level. at which the pressure of the water automatically opens the Valve 21, allowing the accumulated water and, refuse matter to es -ape. in case the-dirt should accumulate so as to prevent the Valve from. opening the 'ater would escape by way of the trap 24.

itis necessaryfor the best. operation of my gas cleaner thatthe water flow over the pipes 50 for their entire length. By temporarily removing the plugs 55). one at a time and observing the pipes 50 through the openings from which. theplugs have been ren'io'ved, the Valves 355 may be turned so as to allow the right quantity. of water to enter the water tubes for keeping the water tubes covered with running water all the time the gas. cleaner is in use. T he rate of flow of water down the outside of the several cross rows of water tubes can be adjusted separately. The front rows of water tubes which are first met by the hot gases require that the valves 3 be opened further than the rows behind. The valves for the trontrows will be the farthest open and the valves will be closed more and more toward the rear where the gases become more and More cooled.

in orderto cause the water to adhere to the watebtubes 50 and wet them entirely, 1 thread their upper ends whereby the water given a, motion'around the tubes, but I do not limit myself to the distance downwardly they are threaded.

The distributing plates 16 divide the gases into different paths so that they will be sent to all parts of the casin In case of an explosion in the blast furnace these plates will swing on their'hinges so that the pressure n the casing will quickly become equalized. The door 11 will also open and relieve the pressure in a large degree.

1. In a cleaning apparatus, a casing through which the gas passes, a plurality of vertical tubes in the casing and in the path of the gas, and means for supplying a constant flow o-fwater up through the tubes and down the outer surfaces of the same.

2. In a gas cleaning apparatus, a casing through which the gas passes, a plurality of vertical tubes arranged in staggered transverse rows in the casing and in the path of the gas, and means for supplying a constant flow of water up through the tubes and down the outer surfaces of the same.

3. in a gas cleaning apparatus, a casing through which the gas passes, a plurality of vertical tubes in the casing and m the path of the gas, means for supplying a constant flow of water down the outer surfaces of the tubes, and means for causing the water to How spirally around the tubes.

l. in a gas cleaning apparatus, a casing through which the gas passes, a plurality of 'vertical tubes in the casing and in the path of the gas, and means for supplying a constant flow of water down the outer surfaces oi the tubes. the tubcsbeing threaded on their exterior surface. i

5. In a gas cleaning apparatus, a casing through which gas may pass, the to of the casing having openings therein, plugs secured in the openings and provided with recesses in their under sides. a plurality of \crtiral water tubes in the casing and in the path of the gas having their upper ends in the recesses and at least their upper portions threaded externally, and means for supplying water under pressure to the lower ends of the water tubes. the water tubes being spaced from the sides of the recesses.

i). in a gas cleaning apparatus, a casing through which gas may pass, the top of the casing having openings therein, plugs secured in the openings and provided with recesses in their under sides, a plarality of vertical water tubes in the casing and in the path of the ha \'ing their upper ends in the recesses and at least their upper portions threaded externally, means for spacing the water tubes from the sides and ends of the recesses, and means for supplying water under pressure to the lower ends of the water tub-es.

7. in a as cleaning apparatus, a casing through wliich gas may pass, the top of the casing comprising a series of channel-bars closed at their ends, plugs secured in openings in the bottom of the channel-ha rs and provided with recesses in their under sides. a source of water supply and a plurality of vertical tubes in the casing and in the path of the gas, the upper ends of the tubes extending into the recesses but being spaced therefrom, whereby water may flow up the tubes, over their upper ends and down their exterior surfaces. I

8. in a gas cleaning apparatus, a casing in which hot gases are cooled, the casing having its top composed of channel-burs arranged side by side with their ends closed, the channels being open upwardly and there being communicating openings through the flanges of adjacent channel-bars.

9; In a gas cleaning apparatus, a. casing through which the gas passes, a series of horizontal tubes arranged side by side in the casing, a series of vertical. tubes communicating with each horizontal tube, a

source of water supply for the tubes, means for securing the ends of the horizontal tubes to the casing, and means for supporting the cent 'al portions of the horizontal tubes and preventing lateral movement of the said .tubes are seated.

water supply for 10. In a gas cleaning apparatus, a casing tl'irough which the gas passes, a series of horlaontal tubes arranged side by side in the c: sing, a series of vertical tubes comlminicating with each horizontal tube, means for securing the ends of the horizontal tubes to the casing, and means for supporting the central portions of the horizontal tubes and preventing lateral movement of the said portions, and a source of water supply for the said tubes, the last named means comprising a metal plate secured to the casing transversely of the horizontal tubes and having recesses in which the 11. In a Q: (leaning apparatus, a. casing through which the gas passes, a plurality of vertical tubes in the casing and in the path of the gas, from which tubes water therein may flow: down the exterior surfaces thereof, openings in-the casing permitting observation of the said tubes, a source of the tubes, and means for regulating the rate of flow of the water through the tubes.

In a gas cleaning apparatus, a casing through which the gas passes, means in the path of the gas for removing impurities therefrom and means in front of the first means, for distributing the gas into streams directed toward different portions of the said removing means.

13. In a. gas cleaning apparatus, a casing through which the gas passes, means in the path of the gas for removing impurities therefrom, deflectors in front of the said horizontal means and means permitting the deflectors to move laterally in case oi v olent increases or gas pressure for} distrlbutlng the gas into streams directed toward different portions of the said removingmeans.

ll. In a gas cleaning apparatus,a casing through which the gas passes, means in the from the gas as it passes through the casing,

means .ior collecting the water and the im purities therein, and a valve operated by the head of water in the last named means for releasing the collected water and im.- purities automatically when the collected water reaches a predetermined level.

16. in a gas cleaning apparatus, a casing through which the gas passes, means for supplying water for washing impurities from the gas as it passes through the casing, means for collecting the water and the impurities therein, a "alve operated by the head. of water in the last named means for releasing the collected water and impurities automatically when the collected water reaches a predetermined level, and a trap for automatically discharging such. water as may rise above a predetermined height above the said level.

Signed at Lowellville, ()hio, this 28th day of May, 1915.

JAMES MCPHAIL. 

